Machine for edge-finishing strips of material



F. w. MERRICK.

MACHINE FOR EDGE FINISHING STRIPS 0F MATERIAL.

APPLICATION FILED MAR. 19, I917.

1 ,323, 371 v Patented Dec. 2,1919.

2 SHEETSSHEET I.

Wain e55 F. W. MERRICK.

MACHINE FOR EDGE FINISHING STRIPS OF MATERIAL.

APPLICATION FILED MAR. 19, I917.

Patented Dec. 2,1919.

2 SHEETSSHEET 2 Fg'yi fnyezzor- 3W M. SWM/k Zack/22655:

UNITED STATES PATENT OFFICE.

FRANK W. MERRICK, BOSTON, MASSACHUSETTS.

MACHINE FOR EDGE-FINISHING STRIPS OF MATERIAL.

To all whom it may concern:

Be it known that I, FRANK W. M'ERRICK, a citizen of the United States,residing at Boston, in the county of Suffolk, State of Massachusetts,have invented a certain new and useful Improvement in Machines for EdgeFinishing Strips of Material, of which the following is a specification,reference being had therein to the accompany- Eng drawings.

The invention consists in devices of novel and improved character'whichare chiefly designed for use in applying a finishing, coloring, orcoloring and finishing, solution or preparation to strips of material,ritually strips of thin and flexible material. n important use of thefeatures of the invention is in the treatment'of stay-strips and thelike. These strips are narrow, and usually are made of leather but insome cases are made of other material. The said features are applicablein the finishing of strips of" paper, and are not in all casesrestricted to use in connection with narrow strips. They lendthemselves, however, with especial advantage to use in machines adaptedfor the finishing of narrow strips. Devices embodying the said featuresare adapted to be employed to apply the solution or prepara-- tion toone or both of the edges of a strip, and if desired to one surface alsoof the strip.

A leading aim of the invention is to provide for applying solution orpreparation to one or both edges of a strip but keep the face of thestrip clean and entirely free from the solution or preparation.

.The invention, broadly stated, consists in the ,combination with amoving carrier, which may be a wallower-roll, or combined with one, andwhich preferably serves also as a feed-roll for the strip that isoperated upon, of one or more scrapers or wipers by which solution orpreparation coating the said carrier is displaced transversely towardthe corresponding edge or edges of a traveling strip, to thereby treatthe said edge or edges. '11: includes a primary, wiper by. which thecoating may be removed from shall remain free fromthe solution orpreparation.

It includes an improved doctor for securing uniformlty transversely inthe Specification of Letters Patent.

thickness of the coating carried around .upon the surface of thecarrier.

An illustrative embodiment of the features of the invention in a machinefor treating a narrow stay-strip is shown in the drawings, in whichlatter,

, Fignre,1 is a side elevation of the said mathe scrapers or wipers aremounted adjust- 'ably."

Fig. 5 is a plan view of the doctor.

Fig.6 is an' end view thereof.

In the drawings, a' stay-strip a is represented as passing through themachine. 1 is a moving carrier," in this instance constituted by awallower-roll, the lower portion of which dipsinto' a pan or container 2that holds the solution or preparation 3 (Fig. 3) to be applied to thesaid strip. By the rotation of the wallower the coating of solution orpreparation adhering to the surface thereof is carried around therewith.A doc tor 4 determines the thickness of the said coating, and therebydetermines the amount of solution or preparation that is supplied forapplication to the strip. The latter goes through a strip-guide 5 havingits deliveryend or nose located between the periphery of the carrier andthat of a presser-roll 6, and close to the nip or point of closestapproach of the said rolls. The strip in leaving the guide passesbetween the two rolls, it being held by the presser-roll against theperiphery of the carrier. The carrier or wallower. is utilized as afeed-roll, it and the presser-roll constituting a pair of feed-rollswhich grip the strip alongside the place of application of the solutionor preparation to the strip, and serve to feed the strip through thedevices and past the said place.

presser-roll is driven through power-connecplained later herein, and asit rotates it operates through engagement with the strip to feed thelatter through the machine, the carrier or wallower being caused to turnas a result of the engagement of the strip with the surface of thecarrier or wallower.

According to one portion of the inven- Patented Dec. 2, 1919.Application filed March 19, 1917. Serial no. 155,693.

tions that are combined therewith, as ex- In the machine shown in thedrawings the p tion, if solution or preparation is to be applied to thestrip-surface which makes contact with the wallower periphery, thecorresponding portion of suchperiphery is permitted to remain charged orcoated with solution or preparation until it transfers the same to thesaid strip-surface. If, however, s'uch strip-surface is to remainuncoated or uncolored, the said portion of the said periphery is wipedclean before the strip touches such portion. To enable either result tobe attained in practice as desired, the illustrated machine is furnishedwith a wiper which may be brought into action or placed out of actionatwill. This 7 Wiper is constituted by the underside of the nose of thestrip-guide 5. The said underside is shaped to fit smoothly and snuglyagainst the periphery of the wallower-roll, and in width correspondsproperly with that of the strip. The guide is adjustable, as explainedlater herein, so as to enable the said underside thereof to be held outof contact with the periphery of the wallower, or in contact therewith,as desired. If the said underside is held out of contact with theperiphery of the wallower the coating on such periphery will be leftundisturbed and the strip-surface which comes in contact with thewallower will receive the said coating. If the underside of the guide isheld in contact with the surface of the wallower, that portion of theperiphery of the wallower with which it makes contact will have thecoating wiped therefrom so that none will be applied to the said surfaceof the strip.

In accordance with another portion of the invention, for the purpose ofapplying the solution or preparation to one or both of the edges of thestrip, the machine is furnished with siderscrapers or wipers 7 7 Theseare arranged to make contact with the periphery of the wallower-roll 1at opposite sides of the point at which the presser-roll 6 makes contactwith the strip a,'as well as in advance of such point, and their actingportions converge toward each other and the strip between them. Theundersides of the said acting portions are curved to fit the curvedperiphery of the wallower. The transverse inclination or convergence ofthe side-scrapers or wipers toward each other operates to deflectinwardly toward. and against the edges of the strip those portions ofcoating which are carried by the portions of the wallower-periphery withwhich the side-scrapers or wipers make contact. The side-scrapers orwipers 7, 7 may touch the edges of the strip externally, but the bestresults are attained in practice when they do not actually make contacttherewith but are separated by a narrow space therefrom. V

The said scrapers or wipers are mounted in manner providing foradjustment of the same widthwise of the strip toward and from eachother, to suit diflerent widths of strip. A convenient means of mountingand adjusting them isshown in the drawings (see more particularly Fig.4.) in which the stem-portion of each scraper or' wiper is attached bymeans of a screw 8 to a slidepiece 9, the two slides 9, 9, being fittedone on top of the other within a transverse groove 10 in the upperportion of a stand or bracket 11, and being fixed in place by means of aclampingv screw 12, the stem of which passes through longitudinal slots13, 13, Figs. 2 and 4, in the said slides, and the threaded portion ofthe said stem being engaged in a threaded hole in the top of the standor bracket 11. This mode of mounting the slides enables them to beadjusted transversely, as may be required in order to locate thescrapers or wipers at the proper distance apart.

stand 17. The opposite end of the swingframe is provided with acontact-screw 18 resting by its lower end upon a block 19, so that bythe adjustment of the said screw the swing-frame may be adjustedvertically to thereby regulate the extent to which the lower portion ofthe wallower-roll dips into the pan or other container 2 and into -thesolution 3 therein. A stripper 20 carried by the swing-frame, and havingits acting end close to the periphery of the wallowerroll at thedelivery-side of the nip between the two rolls, prevents the strip afrom clinging to the wallower-roll and being carried around with thelatter in its revolution. The. presser-roll 6, in this instance, isfixed upon a shaft 21mounted in a bearing 22 provided upon an arm 23.The said arm is furnished with an elongated hub-portion 2d that ismounted between center-screws 24, 24, in connection with uprights 25,25, upon the swing-frame. This mode of mounting the said arm betweencenterscrews at a considerable distance apart prevents twisting of thearm transversely, and insures fiat contact of the per phery of theresser-roll with the strip a The pressure presser-roll 6 comprises aspur-pinion 27 fixed upon the shaft 21 of said roll, an idlegear 28 withwhich pinion 27 engages, mounted to turn upon the plain outer portion ofone of the center-screws 24, and a spur-gear 29 with which idle-gear 28also engages, fixed uponthe shaft 16, which shaft is rotated by suitableactuating means (not shown) in connection therewith.

The width of the presser-roll is less'than that of the strip a that isoperated upon, in order that the solution or preparation that isdeflected by the side-scrapers or wipers transversely toward and againstthe edges of the strip may not touch the presser-roll. This insuresagainst any of the solution or preparation appearing on the face of thestrip. If the solution or preparation should.

touch the presser-roll it would in consequence be caused to show on saidface. To enable the machine to be adapted to operate upon differentwidths of strips, the presserroll is mounted detachably upon shaft 21between a shoulder 21 of said shaft and a nut 21 which screws upon theshe.

The strip-guide 5 is mounted in place by means of a pin 61, Fig. 3,projecting downward from the stem of the guide and enter ing a verticalsocket in a block v62 carried by a yoke 63 that is hung upon reducedendportions of the hub 26 of swing-arm 23. A clamping-screw 621 passingthrough the said block engages with .pin 61 to prevent the guide and pinfrom rising relative to the block; The guide may be removed at will byloosening the screw 621 and lifting the guide so as to withdraw the pin61 from the said socket. By means of.,a contracting spiral spring 64having one end thereof engaged with an arm '65 projecting downward fromthe yoke 63 and the other end thereof engaged with a cross-rod 66 of theswing-frame 15, the uide is held down in working position. fieferringnow to the means of adjusting the guide to secure the special resultswhich have been mentioned: hen it is desired that the underside of thenose of the guide shall act "as a wiper, as

when solution or preparation is not to be applied to the under surfaceof the strip. the spring is pressed in yielding manner against theperiphery of the wallower." When it is desired that the nose shall notact as a wiper, a stop-screw 651, Figs. 1 and 3, carried by the arm 65,is adjusted to engage with the adjacent upright 25 of the swing-frame 15so as to limit the approach of the nose toward the wallower peripheryand prevent it from touching the latter. Bymeverse adjustmentof screw651 the nose may be per mitted to touch the. said periphery again.

The doctor 4 is carried by a rock-bar 51 which is mounted'pivotally upona cross-pin 52 carried by the uprights 25, 25, of the having one endengaged with arm 51 and It is difiicult to secure uniformity in the inthe drawings, forming a feature of the permitted to keep the nose,

swing-frame 15. It occupies an inclined position, with its elevatedacting end resting upon the upper portion of the periphery of thewalloWer-roll in advance of the guide 5. An adjusting-screw 53 workingthrough a threaded hole tapped in the forwardly-proj'ecting arm 54 ofsaiddoctor engages-by its lower end with cross-rod 66 of the swingframe.A contracting spiral spring the other with a cross-pin 56 carried byswing-frame 15, acts in opposition to the adjusting-screw 53, with atendency to-move the acting portion of the doctor away from the perihery of the wallower. By means of the a justing screw the acting end ofthe doctor may be caused to bear with the required pressure against thewallowerperiphery.

coating, transversely of the wallower-roll, when an ordinary doctor isemployed.- I secure the desired uniformity by'means of the specialconstruction of doctor that is shown '90 invention. In the case of suchconstruction, a main acting portion extends across the face of thewallower-roll and is adapted to act in usualmanner inconjunctiontherewith.- Ears 57 57, projecting from the'said main portionat the sides of the wallowerroll, remove from said sides the portions ofsolution or preparation finding their way thereto. "A supplementalactingportion, 58, is located beneath the main acting portion. The saidsupplemental acting portion has its engaging end located in a recess inthe under side of the main acting portion at one side of the middleofthe width of the said main portion, as shown in Fig. 6, and is aboutone-half the width of the main portion. It is constituted by a strip ofspring material that is connected by one end thereof 1 with the mainportion beyond the cross-pin 52. Anadjusting-screw. 59 applied to the.110 main portion of the-doctor engages by its end with the'said strip.By adjustment of the said screw, the engaging end of the supplementalacting portion may be caused to bear more or less effectually for wiping1-15 purposes so as to secure the desired uniformity of wiping actionacross the face of the wallower-roll. 1 i

What is claimed as the invention is 1. The combination with a movingcardisplaced transversely toward an edge of the strip to therebytreatthe said edge.

3. The combination with a moving carrier and a presser cooperatingtherewith to feed along a strip passing between them, said pressernarrower than the said strip so that a marginal portion of the stripprojects laterallyof the presser, of a scraper or wiper by whichsolution or preparation coatrng the surface of said carrier is displacedtransversely toward the projecting edge of the strip to thereby treatthe said edge.

4. The combination with a moving carrier,

of opposite scrapers or wipers between which a strip of material passesand by which solution or preparation coating the surface of said carrieris displaced transversely toward the edges of the said strip, to therebytreat the said edges.

5. The combinatlon with a moving carrier,

and a presser cooperating therewith to feed along a strip passingbetween them, of side scrapers or wipers at opposite sides of the pathof said strip and by which solution or preparation coating the surfaceof the carrier is displaced transversely toward the edges of the saidstrip to thereby treat such edges.

- 6. The combination with a moving carrier, and a presser cooperatingtherewith to feed along a strip passing between them, said pressernarrower than the strip so that marginal portions of the latterproject'at opposite sides of the presser; of side-scrapers'or wipers atopposite sides of the'presser and by which solution or preparationcoating the surface of the carrier is displaced transversely toward theedges of the strip to thereby treat such edges.

7 The combinatlon w h a rotatable wallower-roll, of a scraper or wiper bwhich the solution or preparation coating the surface ofsaidwallower-roll is displaced transversely toward an edge of atraveling spirip of material, to thereby treat the said e ge.

side-scraper or wiper by which solution or preparation coating thesurface of" the' "wallower roll is displaced transversely toward an edgeofsaid strip to thereby treat such edge.

9. The combination with aQwallower-roll, and a presser cooperatingtherewith to feed along a strip passing between them, said pressernarrower than said strip so that a marginal portion of the stripprojects laterally of the placed transversely-toward the projectingedge-'otthe stripto thereby treat the latter.

8. The combination with a wallower-roll, 5 and a presser cooperatingtherewith to feed along a, strip passing between' them, of a resser, ofa side-scraper or wiper by whic solution or reparation coating thesurface of the walower-roll is distoward the edges of the striptothereby treat both of said edges.

12. The combination with a wallower-roll, and a presser cooperatingtherewith to feed along a strip passing. between them, said pressernarrower than said strip so that marginal portions of the latter projectat opposite sides of the presser, of opposite side scrapers or wipers bywhich solution or preparation coating the surface of the carrieris-displaced transversely toward the edges of the -strip to therebytreat both of said edges.

13. The combination with a moving carrier adapted to hold acoating ofsolution or preparation, of a wiper for removing such coating. from theportion of said carrier which contacts with a traveling strip ofmaterial, and a scraper or wiperby which the solution orfpreparationremaining upon an adjoining portion of the carrier is displacedtransversely toward an edge of the said strip, to thereby treat the saidedge.

14; The combination with a moving carrier adapted to hold a coating ofsolution or preparation, andf'a presser coiiperating therewith to feedalong'a strip passing. be-

tween them, of. a wiper for removing such coating from-the portion ofsuch carrier 'which contacts with the traveling strip of material, and ascraper or wiper by which solution or preparation remaining upon anadjoining portion of the carrier is displaced transversely toward anedge of the strip to thereby treat such edge.

15. The comblnation with a rotatable wallower-roll, of a wiper whichremoves the coating of solution or preparation from that portion of thesurface of the wallower-roll which contacts with the surface'of a. striptraveling past the wallower-r'oll, and a scraper or wiper by-which thesolution or preparation uponan adjoining coated portion of thewallower-roll is displaced ftransversely against an edge of the strip,to therebytreat the said edge.

I 16. The combination with a rotatable wallower-roll'adapted to hold acoating of solution orpreparation, and a presser cooperating therewithto feed along a strip passing between them, of a wiper for removing suchcoating from the portion of the wallower-roll which contact with thetraveling strip of material, and a scraper or wiper by which thesolutionor preparation remaining upon an adjoining portion of the carrier is displaced transversely toward an edge of the strip to therebytreat such edge.

17. The combination with a moving carrier adapted to hold a coating ofsolution or preparation, of a wiper for removing such coating from anintermediate portion of the said carrier, and opposite scrapers orwipers by which solution or preparation remaining upon adjoiningportions of the carrier is displaced transversely toward the oppositeedges of a strip of material traveling over the uncoated portion of thecarrierpto thereby treat the said edges.

18. The combination with a moving carrieradapted to hold a coating ofsolution or preparation, and a presser cooperating therewith to feedalong-a strip passing between them, of a wiper for removing such coatingfrom the portion of such carrier which contacts with the traveling stripof material, and opposite scrapers or wipers by which solution orpreparation upon adjoining portions of the carrier is displacedtransversely toward the opposite edges of the strip to thereby treatsuch edges.

19. The combination with a wallower-roll,

of a wiper which removes-the coating ofsolution or preparation from aninter mediate portion of the surface of the wallower-roll, and oppositescrapers or wipers .by which the solution or preparation re- -mainingupon adjoining coated portions of the wallower-roll is displacedtransversely toward and against the opposite edges of a strip travelingover the intermediate portion of the wallower-roll, to thereby treat thesaid edges.

20. The combination with a wallower-roll, and a presser cooperatingtherewith to feed along a strip passing between them, of a wiper forremoving such coating from the portion of the wallower-roll whichcontacts with the strip, and opposite scrapers or wipers by whichsolution or preparation upon adjoining portlons of the wallowerroll isdisplaced transversely toward the opposite edges of the strip to therebytreat such edges.

21. The combination with a moving carrier adapted to hold a coating ofsolution or preparation, of a strip-guide having a wiper for removingsuch coating from the portion of such carrier which contacts with thetraveling strip of material, and a scraperor wiper by which solution orpreparation remaining upon an adjoining portion of the carrier isdisplaced transversely toward an edge of the strip to thereby treat suchedge.

22. The combination with a moving carrier adapted to hold a coating ofsolution or preparation, and a presser cooperating therewith to feedalong a strip passing between them, of a strip-guide having a wiper forremoving such coating from the portion of such carrier which contactswith the traveling strip of material, and a scraper or wiper by whichsolution or preparation remainingupon an adjoining portion of thecarrier is displaced transversely toward an edge of the strip to therebytreat such edge.

23. The comblnation with a rotatable Wallower, of a strip-guide having a'wiper for removing the coating of solution or preparation from theportion of the wallower which contacts with the traveling strip'ofmaterial, and a side-scraper or wiper by which solution orpreparation-remaining upon an adjoining portion of the wallower isdisplaced transversely toward an edge of the strip to thereby treat suchedge.

24. The combination with a rotatable wallower, and a pressercooperatingtherewith to feed along a strip passing between them, of a strip-guidehaving a wiper for removing the coating of solution or. preparation fromthe portion of the wallower which contacts with'the traveling strip ofmaterial,

and a side-scraper or wiper by which solu tion or preparation remainingupon an adjoining portion of the wallower is d splaced transverselytoward an edge of the strip to v thereby treat such'edge.

25. The combinatlon with a moving car" rier adapted to hold a coating ofsolution or preparation, of astrip-guide having a wiper forremoving suchcoating from the portion of such carrier which contacts with thetraveling strip of material, and opposite side-scrapers or wipers bywhich solution or preparation upon adjolning portlons of the carrier isdisplaced transversely toward the opposite edges of the strip to therebytreat such edges.

26. The combination with a rotatable wallower, of a strip-guide having awiper for removing the coating of solution or preparav tion from theportion of the wallower which contacts with the traveling strip ofmaterial, and opposite side-scrapers or wipers by which solution orpreparation remaining upon adjoining portions of the. wallower is iiidisplaced transversely toward the two edges the carrier is displacedtransversely toward the opposite edges of the strip-to treat such edges.g v

28. The combination with a rotatable wallower, and a presser cooperatingtherewith to feed along a strip of materialpassing between them, of astrip-guide having a wiper for removin the coating of .solution orpreparation irom the portion of the wallower which contacts with thetraveling strip of material, and opposite side-scrapers or wipers bywhichsolution or preparation emaining upon adjoining portions of thewallower is displaced transversel toward the two edges of'the strip tothere y'treat such edges.

into working positions either in or out of contact w-iththe carrier, anda scraper or. wiper by-which solution or preparation remaining upon anadjoining portion of the:

' edge of the strip tov thereby treat such removing such carrier isdisplaced transversely toward an edge.

30. The combination with a moving carv rier adapted to hold a coating ofsolutlon or preparation, and a presser'cooperating therewith to feedalong a strip passing between them, of a strip-guide having a wiper forcoating from the portion of such carrier which contactswith thetraveling strip of material, andalso' adjustable into working. positionseither in or out of contact with the carrier, and a scraper or wiper bywhich solution or preparation remaining 'uponanadjoining portion of thecarrier is displaced transverselytoward an edge of the strip to therebytreat suchedge.

31. The combination with a rotatablewaL lower, of a strip-guide having awiper for removing the coating of solution or preparation from theportion of the wallower which contacts with the traveling strip ofmaterial, and also adjustable into working positions either in or out ofcontact with the carrier, and a side-scraper or wiper by which solutionor preparation rema n ng upon an adjoining portion of the wallower isdisplaced transversely toward an edge of the strip to thereby treat suchedge, 7

32. The combination with a rotatable wallower, .and "a pressercooperating therewith-to feed along a strip passing between H I suchedges.

them, of a strip-guide having a wiper .for

removingthe coating of solution or preparation from the portion of thewallower which contacts with the traveling strip of material, and alsoadjustable into working positions either in or out of contact with thewhich solution or preparation remaining upon an adjoining portion of thewallower thereby of the strip tothereby treat such edge.

is displaced transversely toward an edge 33. The combination with amoving carrier adapted to holda coating of solution or preparation, of astripide having a wiper for removing such coating from the portion ofsuch carrier which contacts with the traveling strilg of material,andalso adjustable into wor 'ng positions either or out of contact withthe carrier, and opposite sidescrapers or wipers by which solution orpreparation upon adjoining portions of the carrier is displacedtransversely toward the opposite edges of the strip to thereby treatsuch edges.

34:. The combination with a rotatable wa1 i lower, of a strip-guidehaving a wiper for removing the coating of solution or preparation fromthe portion ofthe wallower which contacts with the traveling stri ofmaterial, and also adjustable into wor ing positions either in or out ofcontact with the carrier, and oppositesidescrapers or wipers by whichsolution or preparation remaining upon ad oinlng portlons of thewallower 1s dlsplaced transversely toward thetwo edges of the strip tothereby treat such edges.

35. The combination-with a inovin carrier adapted tohold a coating of soution or'preparation, and a presser cooperating therewith to feed alonga strip passingbetween them, of a strip-guide hav- 1ng a wiperforremoving such coating from the portion of suchcarrier-whichcontactswith the traveling stri of material, and also adjustable into wor 'ngpositions either in or out of contact with the carrier, and

opposite side-scrapers or wipers by which solution or preparation uponadjoining portions of the carrier is displaced transversely toward theopposite edges of the strip to thereby treat such edges.

36. The combination with arotatable wallower, and a presser cooperatingtherewith to feed along a strip of material passing between them, of astrip-guide having a "wiper for'removin g the coating of solution orpreparation from the portion of the wallower. 1 which contacts with thetraveling strip of material, and also adjustable into working positionseitherin oroutof contact with the carrier, and opposite side-scrapers orwipers by which solution or preparation remaining uponadjoining-portions of the wallower is displacedtransversely toward thetwo edges of the strip to thereby treat of material 37. The combinationwith a --w'a;11wer whichtransfers a coating of solutionor the like, and;means for supplying said coating to said wallower, of a doctor havingrelatively movable working members acting upon adjoining sectionsv ofthe surface of the wallower, and means for adjusting the relative effectof said members ,in securing the required thickness of coating upon saidwal'lower. M

38. The combination with a wallower which transfers a coating ofsolution or the like, and means for supplying said coating .to "saidwallower, of a doctor having relatively movable working members acting.'upon adjoining sectio'ns of the surface of the wallower, means foradjusting the doctor as a whole to regulate its action, and means foradjusting the relative effect of said members in securing the requiredthick- 'ness of coating upon said wallower.

39. The combination -with a wallower which transfers a coating ofsolution or the like, and means forsupplying said coating to saidwallower, of a doctor having a primary and a secondary portion, meansengaging said primary portion for adjustment of the doctor as a unit,and means for relative adjustment of said secondary portion upon theprimary portion.

40. The combination with a wallower which transfers a coating ofsolution or the like, and means for supplying said coating primarypivotally-hung portion and a secondary portioncarrie'd thereby, meansfor adjustment of-the doctor as a unit upon its pivotal mounting, andmeans for adjusting said secondary portion relative to the main portion,to vary the action of said secondaryi ELLEN 0. SPRING;

to said wallower, of a doctor comprising a

